MudRunner2005
Well-Known Member
No, it's supposed to be the exact same burn rate and everything as regular 7828, but the grains are cut all really short so it meters alot more precise in automated machines like the RCBS Chargemaster 1500 and Lyman automated powder measures.MudRunner I have not tried the 7828 SSC. What I didn't like about the 7828 was how temperature sensitive it was. During load development I was leaving my bullets on the bench. One time I forgot and left the bullets in my pocket. I was instantly over pressure. When the rounds were cold they shot ok but usually had one flier. Also when they were cold I had no pressure signs at 61 gr 7828. If I kept them warm I was over pressure at 59 gr 7828! Is the SSC more temp stable? From what I have read you load the same as regular 7828. In my gun the H1000 tightened up the groups and had a way better ES. If your gun likes the 7828 I think it will run with the 257 Weatherby. I liked the speed with 7828 but it was just not consistent enough. With a 28-30" barrel I would think 3400+ fps could be reached. With the H1000 I am at 3350 fps with a ES of 11.
Works great in my Chargemaster 1500.
I'm not having any issues with overpressuring with 7828 SSC in my 7mm RM. It was about 50-60 degrees when I developed the load and it's colder when hunting, so I'm not having any issues.